Electric heating apparatus.



E. B. DICE.

ELECTRIC HEATING APPARATUS.

, APPLICATION FILED IULY6,1915.

1,284,257. Patented Nov. 12, 1918.

l8 /9 INVENTOR- E/mer B. Dice.

- AiTORNEY UNITED STATES PATENT OFFICE.

ELMER IB. DICE, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSEELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLYANIA IELECTRIC HEATING APPARATUS.

A Application filed July 6; 1915. Serial No. 38,204.

To all whom it may concern: 1 p

I ELMER B. DICE, a

Be it known that citizen of the United states, and a resident ofWilkinsburg, in the county of Allegheny frame 1 0 and State ofPennsylvania, have invented a new and useful Improvement in ElectricHeating Apparatus, of which the following is a specification.

' My invention relates to electric translating devices having two ormore relatively movable members that are each provided withcurrent-consuming elements, and it has for one of its objects to providea'device of the character indicated having means for sup plying currentto all of the current-consuming devices in each of the several relativepositions of the component members.

Another object of my invention is to provide two-part electric heatingdevices, such as wafiie irons and the like, with means for heating bothparts of the device while they are in each of two or more relativepositions.

An electrically heated waflie iron embodying the principles of myinvention is illustrated in the accompanying drawing, in which Figure 1is a plan view, with parts broken away, of the wafiie iron in its openposition, and Fig. 2 is a transverse sectional view taken substantiallyalong the line IIII', Fig. land showing one form of terminalconstruction adapted for use in the device shown in Fig. 1-. I

Referring to the drawing, a supporting any suitable material supportsthe corresponding halves 2 and 3 of a waffle iron, the member 3, beingprovided with perforated lugs 4 and 5 cooperating with pivot pins 6 and7, whereby the member 3 is pivotally supported with relation to themember 2. Each of the members 2 and 3' is provided with resistanceelements of any suitable form, one of which is shown at 8 associatedwith the member 2. A handle 9 is attached to the member 3, and notches10 and 11 may be provided in the supporting frame '1 for receiving thehandle in its open and in its closed position, respectively.

The stationary heating member 2 is providedwith a pair of contactmembers 12 and best shown in Fig. 2. A, similar set of contact pins 18and 19 is secured to the frame 1 Y in line with the terminal pins 12 and13, but

preferably somewhat belowthe level of the latter pins. The contact pins18 and 19 are connected to theline conductors 16 and 17 respectively.

The movable heater member 3 is provided I with. contact members 20 and21 that are adaptedto engage the contact members 12 and 13 in the closedposition of the device and to engage the contact membersjlS and 19 inits open position. As shown, the contact members 20 and 21 consist ofshort metallic tubes extending through a projecting ear 22 of the member3 and having flared ends which facilitate their engagement with thestationary contact'pins. Theterminals 2,3 and 24 of the heatingelement-8 that are associated with the stationary member 2, areelectrically connected to the terminal pins 12 and 13. while thecorresponding terminals 25 and 26 of theheating element associatedheating members 2 and 3 in'their open andalso in their closed position,since the tubular contact members 20 and 21 are adapted to engage eitherthe contact pins 12 and 13 or the contact pins 18 and 19.

The provision for heating both of the members of an electrically-heatedwaflie iron in bothof their relative positions is a decided advantage inthis class of apparatus. It is to be understood, however, that myinvention is not restricted to this form of de-' vice or to thestructural details which I have shown and described. My inventioncomprehends broadly the feature of supplying energy to the several partsof a current-consuming device in a plurality of relative positions ofsuch parts and from'terminals and supply conductors that are relativelystationary with respect to the said parts, and,

therefore, no limitations are to be imposed upon my invention exceptsuch as are indicated in the appended claims.

I claim as my invention:

1. An electric device comprising a .plurality of relatively movablemembers, current-consuming elements associated with each of the saidmembers, and means, includres ing terminals and supply conductors thatare I re a tively stationa with respect to the said members, for suppying current to the said current-consuming elements in each of aplufility of relative positions of the said mem- 2. An electric heatingdevice comprising two heating-members adapted for relative pivotalmovement, heating elements associated with each of the said members, andmeans, including terminals and supply conductors that are relativelystationary with t to the said members, 'for energizing bot of the saidheatin elements inboth their open and in their closed position,

3. An electric heating device comprising a stationary member, a movablemember pivotally associated therewith, a heating element associated witheach of the said mem- I bers, means for-constantly energizing theheating element associated with the said stationary member and meansincluding separate sets of terminals for energizing the heating elementassociated with the said pivotally associated therewith, a heatingelement for each of the said heaters, two 'pairs of stationary terminalmembers connected to a surce of current supply, and terminal members forthe heating element associated with thesaid movable heater, the latterterminal members being adapted to engage one of the said pairs ofstationary terminal members in the closed position of the device and toengage the other pair of stationary terminal members in the openposition thereof.

In testimony whereof I have hereunto subscribed my name this 26th day ofJune, 1915.

ELMER B. DICE.

